Question

我要做的是将图像上传并调整大小到我的网络服务器，这是一个相当简单的过程，我从未想过会遇到问题，我的网站图片文件夹结构：

site.com/services/fs/
site.com/services/th/

以上结构是我的文件夹在我的网站文件中的方式，“fullsize”和“thumbnail”我可以上传完整尺寸的图片，没有任何问题，但我在缩略图文件夹中保存缩略图时遇到了问题：

上传代码：

<?php

if (isset($_POST['submitNewService'])) {

    // TRY/CATCH //
    try {

        // IMAGE UPLOAD / RESIZE //
        $original         = $_FILES['service_image']['name'];
        $maxwidth         = '500';
        $maxheight        = '500';
        $random_number    = rand(0, 999999);
        $allowed_image_types = [
            'image/gif',
            'image/jpg',
            'image/x-png',
            'image/jpeg',
            'image/pjpeg',
            'image/bmp'
        ];  
        $imageRestrictions = @getimagesize($_FILES['service_image']['tmp_name']);
        $renamedImage      = "service-" . $random_number . '.' . substr($_FILES['service_image']['name'], strtolower(strlen($_FILES['service_image']['name'])) - 3, 3);
        if (($imageRestrictions[0] >= $maxwidth) || ($imageRestrictions[1] >= $maxheight)) {
            stderr(sprintf('Sorry that <b>image</b> is bigger than <b>%s</b>x<b>%s</b>!', $maxwidth, $maxheight));
        }

        if (!empty($_FILES['service_image']['name'])) {
            if (!in_array($_FILES['service_image']['type'], $allowed_image_types)) {
                stderr('The <b>uploaded</b> image does not appear to be a valid file!');
            }
            $uploadpath = '../services/fs/' . $renamedImage;
            move_uploaded_file($_FILES['service_image']['tmp_name'], $uploadpath);
        }

        $imgResized = resize_image($uploadpath, $renamedImage);
        // IMAGE UPLOAD / RESIZE //

        DB::getInstance()->insert(
            'services',
        [
            'service_user_id' => $globId,
            'service_name' => $_POST['service_name'],
            'service_body' => nl2br($_POST['service_body']),
            'service_cost' => $_POST['service_cost'],
            'service_category' => $_POST['service_category'],
            'service_image' => $renamedImage,
            'service_thumb_image' => $imgResized,
            'service_date' => date('Y-m-d H:i:s')
        ]);

        stdmsg("Your service [ <b>{$_POST['service_name']}</b> ] has been added successfully!");        

    } catch (Exception $e) {
        stderr($e->getMessage());
    }

}

?>

调整功能：

<?php

function resize_image($uploadDirectory, $newFileName) {
    $original_image   = $uploadDirectory;
    $ext              = substr($original_image, strrpos($original_image, '.') + 1);
    $canvas_width     = 480;
    $canvas_height    = 250;
    $canvas           = imagecreatetruecolor($canvas_width, $canvas_height);
    $white_background = imagecolorallocate($canvas, 255, 255, 255);

    imagefill($canvas, 0, 0, $white_background);
    list($image_width, $image_height) = getimagesize($uploadDirectory);

    $ratio = $image_width / $image_height;

    if ($ratio > 1) {
        $new_image_width  = 65;
        $new_image_height = 65 / $ratio;
    } else {
        $new_image_width  = (float) 65 * $ratio;
        $new_image_height = 65;
    }

    if ($ext == "jpg") {
        $original_image = imagecreatefromjpeg($original_image);
    } 

    if ($ext == "gif") {
        $original_image = imagecreatefromgif($original_image);
    } 

    imagecopyresampled($canvas, $original_image, 0, 0, 0, 0, $new_image_width, $new_image_height, $image_width, $image_height);
    $new_thumbnail_name = "thumb-$newFileName";

    if ($ext == "jpg") {
        imagejpeg($canvas, "../services/th/{$new_thumbnail_name}", 100);
        return $new_thumbnail_name;
    } 

    if ($ext == "gif") {
        imagegif($canvas, "../services/th/{$new_thumbnail_name}", 100);
        return $new_thumbnail_name;
    } 

    imagedestroy($original_image);
    imagedestroy($canvas);
}

?>

调整大小代码我从几年前工作得很好的另一个项目中获取，我只是无法将缩略图保存在缩略图文件夹中，是否有一些我错过的小文件，文件路径对我来说很好，任何帮助将不胜感激。

上传并调整图像问题的大小

0 个答案: